The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  0  1  1  1  0  1  1  1  X  1  1  1  1  1  1  X  1  1  1  1  X  1  1  1  1  1  1  1  1  1  1  1  1  1  1  X  1  0  1  1  1 4X  1  1  1 4X  1 4X  1  1  1  X  1  1  1  1
 0  1  1  2 3X+4  3  0 3X+1  2 3X+4  3  1  0 3X+4  3  1 3X+1  2 3X+1  1 4X+4  X X+2 2X+4  X X+2  1 2X+1  X X+2 2X+4  1 2X+2  X 2X+1 4X+1  1 3X X+2  1  2 4X+2 2X+4 2X 4X+4 X+4  1 3X  1 4X+2 X+3 2X+4  1 3X  0 3X+1  1 2X+3  1 X+3 4X+4 3X+1  1  2 3X+4 X+1  3
 0  0 3X  0 3X 2X  0 4X 2X 4X  X 3X 2X  0 3X 3X 3X  0 2X  X  0 2X 3X 2X  X  X  0 4X 4X 3X  X 4X 4X  X 3X  X  X 2X 2X  X 3X 4X 2X  X 2X  0 2X  0  0 4X 4X  X  X 4X 4X 2X 3X  X 2X 2X 4X  0  X  X 4X 3X  0
 0  0  0  X 3X  X 2X 3X  0 2X 3X  X 2X 3X  X 3X 4X 2X 2X 4X  X 3X 2X  X  0  X 4X 4X 2X  X 3X  X 3X 4X 2X  X 2X 4X 3X 3X 3X  0 4X  X 3X 4X 2X  X 2X 2X 4X 4X  0  0  X 3X  0 4X 3X 2X 4X 2X  X  0  0  0 3X

generates a code of length 67 over Z5[X]/(X^2) who´s minimum homogenous weight is 255.

Homogenous weight enumerator: w(x)=1x^0+736x^255+3400x^260+3032x^265+3948x^270+3412x^275+1028x^280+8x^285+20x^290+8x^295+8x^300+12x^305+8x^310+4x^315

The gray image is a linear code over GF(5) with n=335, k=6 and d=255.
This code was found by Heurico 1.16 in 0.507 seconds.